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Health status of the red-billed tropicbird (Phaethon aethereus) determined by hematology, biochemistry, blood gases, and physical examination
Journal article   Open access   Peer reviewed

Health status of the red-billed tropicbird (Phaethon aethereus) determined by hematology, biochemistry, blood gases, and physical examination

Alice Skehel, Catalina Ulloa, Diane Deresienski, Cristina Regalado, Juan Pablo Muñoz-Pérez, Juan Augusto Garcia, Britta Denise Hardesty, Ronald K. Passingham, Jason Steve Castañeda, Gregory A. Lewbart, …
PeerJ, Vol.11, pp.1-14
2023
PMCID: PMC10414024
PMID: 37576513
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Health status of the red-billed tropicbird ( Phaethon aethereus ) determined by hematology, biochemistry, blood gases, and physical examination313.92 kBDownloadView
Published Version Open Access CC BY V4.0
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https://doi.org/10.7717/peerj.15713View
Published Version

Abstract

Biochemistry Galápagos Hematology Red-billed tropicbirds Phaethon aethereus
The red-billed tropicbird, Phaethon aethereus, is a species of seabird native to the Galápagos archipelago, and widely distributed across the neotropics. General health, blood chemistry, and haematology parameters have not been published for this species. Blood analyses were performed on samples drawn from 51 clinically healthy red-billed tropicbirds captured from their burrows at Islote Pitt on San Cristóbal Island in July, 2016 (21) and Daphne Major Island in June, 2017 (30). In the field, a point of care blood analyser (iSTAT) was used to obtain results for HCO3-, pH, pCO2, pO2, TCO2, iCa, Na, K, Cl, Hb, HCT, anion gap, creatinine, glucose and urea nitrogen. Additionally, a portable Lactate PlusTM analyser was used to measure blood lactate, and blood smears were also created in situ. The blood slides were used to estimate leukocyte counts and 100-cell differentials. Alongside these biochemistry and haematology parameters, average heart rate, respiratory rate, body temperature and scaled mass index (calculated from weight and a body measurement) were compared to determine the standard measurements for a healthy individual. The baseline data, and reference intervals reported in this paper are essential to detecting changes in the health of red-billed tropicbirds in the future.

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